function::set_user_int - Linux

Overview

function::set_user_int assigns a value to a polynomial coefficient using the polynomial module.

Syntax

function::set_user_int(Array $coeff, int $pos, int $value) : void

Options/Flags

| Option | Description |
|—|—|
| $coeff | Array of coefficients |
| $pos | Position of the coefficient to set |
| $value | Value to set the coefficient to |

Examples

Setting a specific coefficient in a polynomial:

use function Polynomial\set_user_int;

$coeff = [1, 2, 3];
set_user_int($coeff, 1, 4);

After executing the code, $coeff will be [1, 4, 3].

Setting multiple coefficients in a polynomial:

use function Polynomial\set_user_int;

$coeff = [1, 2, 3];
set_user_int($coeff, [0, 2], [5, 7]);

After executing the code, $coeff will be [5, 2, 7].

Common Issues

• Invalid position: If $pos is less than 0 or greater than the length of the polynomial, an exception will be thrown.
• Invalid value: If $value is not an integer, an exception will be thrown.

Integration

The function::set_user_int function can be used with other polynomial functions to perform various operations on polynomials. For example, it can be used to:

• Add two polynomials together using the function::add function.
• Multiply two polynomials together using the function::mul function.
• Evaluate a polynomial at a given point using the function::eval function.

Related Commands

• function::get_user_int – Gets the value of a polynomial coefficient.
• polynomial – A PHP module for working with polynomials.
• polyval – Built-in PHP function to evaluate a polynomial.